import Vue from 'vue'
import VueRouter from 'vue-router'

//导入组件
import Login from "../components/Login.vue"
import Home from "../components/Home.vue"
import Welcome from "../components/Welcome.vue"
import Users from "../components/user/Users.vue"
import Rights from "../components/power/Rights.vue"
import Roles from "../components/power/Roles.vue"
import Cate from "../components/goods/Cate.vue"
import Params from "../components/goods/Params.vue"
import GoodsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from "../components/report/Report"

Vue.use(VueRouter);

const router = new VueRouter({
  routes : [
    {path:'/',redirect:'/login'},     //重定向地址
    {path: '/login',component:Login},
    {
      path: '/home',
      component:Home,
      redirect: '/welcome',
      children:[
        {path: '/welcome', component: Welcome},
        {path: '/users', component: Users},
        {path: '/rights', component: Rights},
        {path: '/roles', component: Roles},
        {path: '/categories', component: Cate},
        {path: '/params', component: Params},
        {path: '/goods', component: GoodsList},
        {path: '/goods/add', component: Add},
        {path: '/orders', component:Order},
        {path: '/reports', component: Report}
      ]}
  ]
});

//挂载路由导航守卫
router.beforeEach((to, from ,next) =>{
  // to 将要访问的路径
  // from 代表从那个路径跳转而来
  // next 函数，表示发行
  //   next() 放行 next('/login') 强制跳转

  if(to.path == '/login') return next();
  // 获取 token
  const  tokenStr = window.sessionStorage.getItem('token');
  if(!tokenStr) return next('/login');
  next();
});


export default router